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Schedule II - Valuation and Qualifying Accounts (Tables)
12 Months Ended
Jan. 31, 2022
Notes Tables  
Summary of Valuation Allowance [Table Text Block]

(In thousands)

 Balance at beginning of period  Charges to expenses  Write-offs (1)  Other charges (2)  Balance at end of period 

Year Ended January 31, 2022

                    

Valuation allowance for deferred tax assets

 $17,746  $(717) $-  $(124) $16,905 

Allowance for possible losses in collection of trade receivables

  474   32   -   (20)  486 
                     

Year Ended January 31, 2021

                    

Valuation allowance for deferred tax assets

 $15,937  $1,854  $-  $(45) $17,746 

Allowance for possible losses in collection of trade receivables

  407   72   (7)  2   474